Fix clang compile

tier0/assert_dialog.cpp

@@ -386,7 +386,7 @@ DBG_INTERFACE bool ShouldUseNewAssertDialog()
 #endif // DBGFLAG_ASSERTDLG
 }
 
-#if defined( POSIX )
+#if defined( POSIX ) && !defined ( ANDROID )
 
 #include <execinfo.h>
 
@@ -441,7 +441,9 @@ DBG_INTERFACE bool DoNewAssertDialog( const tchar *pFilename, int line, const tc
 		        pFilename, line, pExpression);
 		if ( getenv( "POSIX_ASSERT_BACKTRACE" ) )
 		{
+#if !defined ( ANDROID )
 			SpewBacktrace();
+#endif
 		}
 	}
 	else

tier0/cpu_usage.cpp

@@ -124,9 +124,13 @@ float GetCPUUsage()
 
 float GetCPUUsage() 
 {
+#ifdef ANDROID
+	return 0;
+#else
 	double loadavg[3];
 
 	getloadavg( loadavg, 3 );
 	return loadavg[0];
+#endif
 }
 #endif //POSIX

tier0/stacktools.cpp

@@ -1,4 +1,4 @@
-//===== Copyright © 1996-2005, Valve Corporation, All rights reserved. ======//
+//===== Copyright � 1996-2005, Valve Corporation, All rights reserved. ======//
 //
 // Purpose: 
 //
@@ -27,7 +27,7 @@
 #include <set>
 #endif
 
-#if defined( LINUX )
+#if defined( LINUX ) && !defined( ANDROID )
 #include <execinfo.h>
 #endif
 
@@ -38,7 +38,7 @@
 
 #if !defined( ENABLE_RUNTIME_STACK_TRANSLATION ) //disable the whole toolset
 
-#if defined( LINUX )
+#if defined( LINUX ) && !defined( ANDROID )
 
 int GetCallStack( void **pReturnAddressesOut, int iArrayCount, int iSkipCount )
 {

tier0/threadtools.cpp

@@ -2034,6 +2034,8 @@ void CThread::Yield()
 {
 #ifdef _WIN32
 	::Sleep(0);
+#elif defined(ANDROID)
+	sched_yield();
 #elif defined(POSIX)
 	pthread_yield();
 #endif